In a ceremony on May 9, a French museum in the town of Rouen returned to officials from New Zealand the embalmed head of a Maori warrior, which had languished in the museum as an exotic collectible for over a century. TIME takes a look at history's other notable pilfered remains.

Maori Heads

By Ishaan TharoorTuesday, May 10, 2011

Robert Pratta / Reuters

In May 2010, France's National Assembly voted to return the mummified heads of 16 Maoris from various museums back to their homeland in New Zealand. In traditional Maori practice, the heads of one's forefathers, often tattooed to the bone of the skull, were kept as totems honoring their spirits. But a macabre colonial-era fascination with these remains led to a lucrative trade, and many of the embalmed heads whisked away to Europe in the 19th century were actually Maori slaves, forcibly tattooed and decapitated by local or foreign opportunists.

At one time, over 500 Maori heads languished in the cellars of European museums; only in the past two decades, following calls from the New Zealand government as well as rights groups, have over 320 been repatriated. "You do not build a culture on trafficking," said France's culture minister, Frederic Mitterand. "You build a culture on respect and on exchange." Just four years ago, though, his ministry blocked a French museum's independent offer to return the lone Maori head in its possession, fearful that it could lead to an emptying of other untold skeletons in France's closet.